public SnapshotWriter(KeyValueStateMachine parent)
{
_parent = parent;
var files = Directory.GetFiles(_parent._storageEnvironment.Options.BasePath, "*.Snapshot");
var fullBackupIndex = GetFullBackupIndex(files);
if (fullBackupIndex == -1)
{
throw new InvalidOperationException("Could not find a full backup file to start the snapshot writing");
}
var last = Path.GetFileNameWithoutExtension(files[files.Length - 1]);
Debug.Assert(last != null);
var parts = last.Split('-');
if (parts.Length != 3)
{
throw new InvalidOperationException("Invalid snapshot file name " + files[files.Length - 1] + ", could not figure out index & term");
}
Index = long.Parse(parts[1]);
Term = long.Parse(parts[2]);
for (int i = fullBackupIndex; i < files.Length; i++)
{
_files.Add(File.OpenRead(files[i]));
}
}
private static void Main(string[] args)
{
var options = new TailFeatherCommandLineOptions();
if (Parser.Default.ParseArguments(args, options) == false)
{
var autoBuild = HelpText.AutoBuild(options);
HelpText.DefaultParsingErrorsHandler(options, autoBuild);
Console.WriteLine(autoBuild.ToString());
return;
}
var nodeName = options.NodeName ?? (Environment.MachineName + ":" + options.Port);
Console.Title = string.Format("Node name: {0}, port: {1}", nodeName, options.Port);
var kvso = StorageEnvironmentOptions.ForPath(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, options.DataPath, "KeyValue"));
using (var statemachine = new KeyValueStateMachine(kvso))
{
var storageEnvironmentOptions = StorageEnvironmentOptions.ForPath(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, options.DataPath, "Raft"));
var httpTransport = new HttpTransport(nodeName);
var raftEngineOptions = new RaftEngineOptions(
new NodeConnectionInfo
{
Name = nodeName,
Uri = new Uri("http://" + Environment.MachineName + ":" + options.Port),
},
storageEnvironmentOptions,
httpTransport,
statemachine
)
{
ElectionTimeout = 5 * 1000,
HeartbeatTimeout = 1000,
MaxLogLengthBeforeCompaction = 25
};
if (options.Boostrap)
{
PersistentState.ClusterBootstrap(raftEngineOptions);
Console.WriteLine("Setup node as the cluster seed, exiting...");
return;
}
using (var raftEngine = new RaftEngine(raftEngineOptions))
{
using (WebApp.Start(new StartOptions
{
Urls = { "http://+:" + options.Port + "/" }
}, builder =>
{
var httpConfiguration = new HttpConfiguration();
httpConfiguration.Formatters.Remove(httpConfiguration.Formatters.XmlFormatter);
httpConfiguration.Formatters.JsonFormatter.SerializerSettings.Formatting = Newtonsoft.Json.Formatting.Indented;
httpConfiguration.Formatters.JsonFormatter.SerializerSettings.Converters.Add(new Newtonsoft.Json.Converters.StringEnumConverter());
RaftWebApiConfig.Load();
httpConfiguration.MapHttpAttributeRoutes();
httpConfiguration.Properties[typeof(HttpTransportBus)] = httpTransport.Bus;
httpConfiguration.Properties[typeof(RaftEngine)] = raftEngine;
builder.UseWebApi(httpConfiguration);
}))
{
Console.WriteLine("Ready @ http://" + Environment.MachineName + ":" + options.Port + "/, press ENTER to stop");
Console.ReadLine();
}
}
}
}
public SnapshotWriter(KeyValueStateMachine parent)
{
_parent = parent;
var files = Directory.GetFiles(_parent._storageEnvironment.Options.BasePath, "*.Snapshot");
var fullBackupIndex = GetFullBackupIndex(files);
if (fullBackupIndex == -1)
throw new InvalidOperationException("Could not find a full backup file to start the snapshot writing");
var last = Path.GetFileNameWithoutExtension(files[files.Length - 1]);
Debug.Assert(last != null);
var parts = last.Split('-');
if (parts.Length != 3)
throw new InvalidOperationException("Invalid snapshot file name " + files[files.Length - 1] + ", could not figure out index & term");
Index = long.Parse(parts[1]);
Term = long.Parse(parts[2]);
for (int i = fullBackupIndex; i < files.Length; i++)
{
_files.Add(File.OpenRead(files[i]));
}
}